Merge branch 'master' into feature-39161/PV21_Valorisierung

2026-07-23 01:42:17 +00:00 · 2024-09-13 12:39:05 +02:00
parent 30396b3f0e 555e74b8cd
commit d6966b24fe
117 changed files with 21695 additions and 307 deletions
@@ -121,7 +121,7 @@ class AntragLib
 	public function unpauseAntrag($antrag_id, $insertvon)
 	{
 		if ($insertvon == Studierendenantragstatus_model::INSERTVON_DEREGISTERED)
-			return error($this->p->t('studierendenantrag', 'error_no_right'));
+			return error($this->_ci->p->t('studierendenantrag', 'error_no_right'));
 		if ($insertvon == Studierendenantragstatus_model::INSERTVON_ABMELDUNGSTGL) {
 			return $this->_ci->StudierendenantragstatusModel->resumeAntraegeForAbmeldungStgl($antrag_id);
 		}
@@ -257,18 +257,28 @@ class AntragLib
 						if (isError($result))
 							$errors[] = getError($result);

+						$this->_ci->load->model('crm/Statusgrund_model', 'StatusgrundModel');
+						$result = $this->_ci->StatusgrundModel->loadWhere(['statusgrund_kurzbz' => 'abbrecherStud']);
+						if (isError($result)) {
+							$errors[] = getError($result);
+							continue;
+						} elseif (!hasData($result)) {
+							$errors[] = $this->_ci->p->t('lehre', 'error_noStatusgrund', ['statusgrund_kurzbz' => 'abbrecherStud']);
+							continue;
+						}
+						$statusgrund = current(getData($result));
+
 						$result = $this->_ci->prestudentlib->setAbbrecher(
                            $antrag->prestudent_id,
                            $antrag->studiensemester_kurzbz,
                            $insertvon,
-                            'abbrecherStud',
+                            $statusgrund->statusgrund_id,
                            $antrag->datum,
                            $insertam
                        );
-						if (isError($result))
-						{
+						if (isError($result)) {
 							$errors[] = getError($result);
-							return $errors;
+							continue;
 						}

 						$result = $this->_ci->PersonModel->loadPrestudent($antrag->prestudent_id);
@@ -421,11 +431,20 @@ class AntragLib
 			// NOTE(chris): here we should have error handling but at the
 			// moment there is no way to notify the user for "soft" errors

+			$this->_ci->load->model('crm/Statusgrund_model', 'StatusgrundModel');
+			$result = $this->_ci->StatusgrundModel->loadWhere(['statusgrund_kurzbz' => 'abbrecherStgl']);
+			if (isError($result))
+				return $result;
+			if (!hasData($result))
+				return error($this->_ci->p->t('lehre', 'error_noStatusgrund', ['statusgrund_kurzbz' => 'abbrecherStgl']));
+			
+			$statusgrund = current(getData($result));
+
 			$result = $this->_ci->prestudentlib->setAbbrecher(
                $antrag->prestudent_id,
                $antrag->studiensemester_kurzbz,
                $insertvon,
-                'abbrecherStgl',
+                $statusgrund->statusgrund_id,
                $status->insertamum
            );

@@ -35,8 +35,15 @@ class PrestudentLib
 		$this->_ci->load->model('organisation/Studiengang_model', 'StudiengangModel');
 	}

-	public function setAbbrecher($prestudent_id, $studiensemester_kurzbz, $insertvon = null, $statusgrund_kurzbz = null, $datum = null, $bestaetigtam = null, $bestaetigtvon = null)
-	{
+	public function setAbbrecher(
+		$prestudent_id,
+		$studiensemester_kurzbz,
+		$insertvon = null,
+		$statusgrund_id = null,
+		$datum = null,
+		$bestaetigtam = null,
+		$bestaetigtvon = null
+	) {
 		if (!$insertvon)
 			$insertvon = getAuthUID();
 		if (!$bestaetigtvon)
@@ -70,8 +77,8 @@ class PrestudentLib
 		if(!$bestaetigtam)
 			$bestaetigtam = date('c');

-		//Status und Statusgrund updaten
-		$result = $this->_ci->PrestudentstatusModel->withGrund($statusgrund_kurzbz)->insert([
+		// Status und Statusgrund updaten
+		$result = $this->_ci->PrestudentstatusModel->insert([
 			'prestudent_id' => $prestudent_id,
 			'status_kurzbz' => Prestudentstatus_model::STATUS_ABBRECHER,
 			'studiensemester_kurzbz' => $prestudent_status->studiensemester_kurzbz,
@@ -82,13 +89,13 @@ class PrestudentLib
 			'orgform_kurzbz'=> $prestudent_status->orgform_kurzbz,
 			'studienplan_id'=> $prestudent_status->studienplan_id,
 			'bestaetigtvon' => $bestaetigtvon,
-			'bestaetigtam' => $bestaetigtam
+			'bestaetigtam' => $bestaetigtam,
+			'statusgrund_id' => $statusgrund_id
 		]);

 		if (isError($result))
 			return $result;

-
 		//Verband anlegen
 		$result = $this->_ci->LehrverbandModel->load([
 			'studiengang_kz' => $student->studiengang_kz,
@@ -134,7 +141,7 @@ class PrestudentLib
 			]);
 		}

-		//noch nicht eingetragene Zeugnisnoten auf 9 setzen
+		// noch nicht eingetragene Zeugnisnoten auf 9 setzen
 		$result = $this->_ci->ZeugnisnoteModel->getZeugnisnoten($student->student_uid, $prestudent_status->studiensemester_kurzbz);
 		if (isError($result))
 			return $result;
@@ -166,9 +173,9 @@ class PrestudentLib
 		}


-		//Update Aktionen
+		// Update Aktionen

-		//StudentModel updaten
+		// StudentModel updaten
 		$this->_ci->StudentModel->update([
 			'student_uid' => $student->student_uid
 		], [
@@ -192,7 +199,7 @@ class PrestudentLib
 			'updatevon' => $insertvon
 		]);

-		//Benutzer inaktiv setzen
+		// Benutzer inaktiv setzen
 		$this->_ci->BenutzerModel->update([
 			'uid' =>  $student->student_uid
 		], [
@@ -206,17 +213,28 @@ class PrestudentLib
 		return success();
 	}

-	public function setUnterbrecher($prestudent_id, $studiensemester_kurzbz, $studierendenantrag_id, $insertvon = null)
-	{
+	public function setUnterbrecher(
+		$prestudent_id,
+		$studiensemester_kurzbz,
+		$studierendenantrag_id = null,
+		$insertvon = null,
+		$ausbildungssemester = null,
+		$statusgrund_id = null
+	) {
 		$ausbildungssemester_plus = 0;
+		
 		if (!$insertvon)
 			$insertvon = getAuthUID();

+
 		$result = $this->_ci->PrestudentstatusModel->getLastStatus($prestudent_id, $studiensemester_kurzbz);
+		
 		if (isError($result))
 			return $result;
+		
 		$result = getData($result);
-		if (!$result) {
+		
+		if (!$result) { // NOTE(chris): no status in target stdsem
 			//NOTE(manu): only valid if nextSemester focus max

 			$result = $this->_ci->PrestudentstatusModel->getLastStatus($prestudent_id);
@@ -224,7 +242,7 @@ class PrestudentLib
 				return $result;
 			$result = getData($result);

-			//check if ausbildungssemester is last
+			// check if ausbildungssemester is last
 			$this->_ci->StudiengangModel->addJoin('public.tbl_prestudent p', 'studiengang_kz');
 			$res = $this->_ci->StudiengangModel->loadWhere(['p.prestudent_id' => $prestudent_id]);
 			if(isError($res))
@@ -249,31 +267,47 @@ class PrestudentLib
 		}

 		$prestudent_status = current($result);
+
+
 		$result = $this->_ci->StudentModel->loadWhere(['prestudent_id' => $prestudent_id]);

 		if (isError($result))
 			return $result;
+
 		$result = getData($result);
+		
 		if (!$result)
 			return error($this->_ci->p->t('studierendenantrag', 'error_no_student_for_prestudent', ['prestudent_id' => $prestudent_id]));

 		$student = current($result);

-		$resultAntrag = $this->_ci->StudierendenantragModel->load($studierendenantrag_id);
-		if (isError($resultAntrag))
-			return $resultAntrag;
-		$resultAntrag = getData($resultAntrag);
-		if (!$resultAntrag)
-			return error($this->_ci->p->t('studierendenantrag', 'error_no_antrag_found', ['id' => $studierendenantrag_id]));

-		$antrag = current($resultAntrag);
+		if ($studierendenantrag_id)
+		{
+			$resultAntrag = $this->_ci->StudierendenantragModel->load($studierendenantrag_id);
+			if (isError($resultAntrag))
+				return $resultAntrag;
+			$resultAntrag = getData($resultAntrag);
+			if (!$resultAntrag)
+				return error($this->_ci->p->t('studierendenantrag', 'error_no_antrag_found', ['id' => $studierendenantrag_id]));

-		//Status updaten
+			$antrag = current($resultAntrag);
+			$anmerkung = 'Wiedereinstieg ' . $antrag->datum_wiedereinstieg;
+		}
+		else
+			$anmerkung = '';
+
+		if ($ausbildungssemester)
+			$semester = $ausbildungssemester;
+		else
+			$semester = $prestudent_status->ausbildungssemester + $ausbildungssemester_plus;
+
+		// Status updaten
 		$result = $this->_ci->PrestudentstatusModel->insert([
 			'prestudent_id' => $prestudent_id,
 			'status_kurzbz' => Prestudentstatus_model::STATUS_UNTERBRECHER,
 			'studiensemester_kurzbz' => $studiensemester_kurzbz,
-			'ausbildungssemester' => $prestudent_status->ausbildungssemester + $ausbildungssemester_plus,
+			'ausbildungssemester' => $semester,
 			'datum' => date('c'),
 			'insertvon' => $insertvon,
 			'insertamum' => date('c'),
@@ -281,7 +315,8 @@ class PrestudentLib
 			'studienplan_id'=> $prestudent_status->studienplan_id,
 			'bestaetigtvon' => $insertvon,
 			'bestaetigtam' => date('c'),
-			'anmerkung'=> 'Wiedereinstieg ' . $antrag->datum_wiedereinstieg
+			'anmerkung'=> $anmerkung,
+			'statusgrund_id' => $statusgrund_id
 		]);

 		if (isError($result))
@@ -332,7 +367,7 @@ class PrestudentLib
 			]);
 		}

-		//noch nicht eingetragene Zeugnisnoten auf 9 setzen
+		// noch nicht eingetragene Zeugnisnoten auf 9 setzen
 		$result = $this->_ci->ZeugnisnoteModel->getZeugnisnoten($student->student_uid, $studiensemester_kurzbz);
 		if (isError($result))
 			return $result;
@@ -363,10 +398,9 @@ class PrestudentLib
 			}
 		}

+		// Update Aktionen

-		//Update Aktionen
-
-		//StudentModel updaten
+		// StudentModel updaten
 		$this->_ci->StudentModel->update([
 			'student_uid' => $student->student_uid
 		], [
@@ -409,4 +443,463 @@ class PrestudentLib

 		return success();
 	}
+
+	public function setStudent($prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id)
+	{
+		$authUID = getAuthUID();
+		$now = date('c');
+
+
+		$result = $this->_ci->PrestudentstatusModel->getLastStatus($prestudent_id);
+
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return error($this->_ci->p->t('studierendenantrag', 'error_no_prestudentstatus', [
+				'prestudent_id' => $prestudent_id
+			]));
+
+		$prestudent_status = current(getData($result));
+
+
+		$result = $this->_ci->StudentModel->loadWhere(['prestudent_id' => $prestudent_id]);
+
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return error($this->_ci->p->t('studierendenantrag', 'error_no_student_for_prestudent', ['prestudent_id' => $prestudent_id]));
+
+		$student = current(getData($result));
+
+
+		$this->_ci->load->library('VariableLib', ['uid' => $authUID]);
+		$semester_aktuell = $this->_ci->variablelib->getVar('semester_aktuell');
+
+
+		// Update Aktionen
+
+		// Status updaten
+		$result = $this->_ci->PrestudentstatusModel->insert([
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => Prestudentstatus_model::STATUS_STUDENT,
+			'studiensemester_kurzbz' => $studiensemester_kurzbz,
+			'statusgrund_id' => $statusgrund_id,
+			'ausbildungssemester' => $ausbildungssemester,
+			'datum' => $now,
+			'insertvon' => $authUID,
+			'insertamum' => $now,
+			'orgform_kurzbz'=> $prestudent_status->orgform_kurzbz,
+			'studienplan_id'=> $prestudent_status->studienplan_id,
+			'bestaetigtvon' => $authUID,
+			'bestaetigtam' => $now
+		]);
+
+		if (isError($result))
+			return $result;
+
+
+		// Student updaten
+		$result = $this->_ci->StudentModel->update([
+			'student_uid' => $student->student_uid
+		], [
+			'semester' => $ausbildungssemester,
+			'verband' => '',
+			'gruppe' => '',
+			'updatevon' => $authUID,
+			'updateamum' => $now
+		]);
+
+		if (isError($result))
+			return $result;
+
+
+		// Studentlehrverband updaten
+		$result = $this->_ci->StudentlehrverbandModel->update([
+			'student_uid' => $student->student_uid,
+			'studiensemester_kurzbz' => $semester_aktuell
+		], [
+			'semester' => $ausbildungssemester,
+			'verband' => '',
+			'gruppe' => '',
+			'updatevon' => $authUID,
+			'updateamum' => $now
+		]);
+
+		if (isError($result))
+			return $result;
+
+
+		// Benutzer updaten
+		$result = $this->_ci->BenutzerModel->load([$student->student_uid]);
+
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return error($this->_ci->p->t('person', 'error_noBenutzer'));
+
+		$benutzer = current(getData($result));
+		$updateData = [
+			'aktiv' => true,
+			'updateamum' => $now,
+			'updatevon' => $authUID
+		];
+		if (!$benutzer->aktiv) {
+			$updateData['updateaktivam'] = $now;
+			$updateData['updateaktivvon'] = $authUID;
+		}
+
+
+		$this->_ci->BenutzerModel->update([$student->student_uid], $updateData);
+
+		return success();
+	}
+
+	public function setFirstStudent(
+		$prestudent_id,
+		$studiensemester_kurzbz,
+		$ausbildungssemester,
+		$orgform_kurzbz,
+		$studienplan_id,
+		$statusgrund_id
+	) {
+		$this->_ci->PrestudentModel->addJoin('public.tbl_person p', 'person_id');
+		$this->_ci->PrestudentModel->addJoin('public.tbl_studiengang stg', 'studiengang_kz');
+		$result = $this->_ci->PrestudentModel->load($prestudent_id);
+
+		if (isError($result))
+			return $result;
+
+		if (!hasData($result))
+			return error('No prestudent');
+
+		$student_data = current(getData($result));
+
+
+		$authUID = getAuthUID();
+		$now = date('c');
+		$today = date('Y-m-d');
+
+		$jahr = mb_substr($studiensemester_kurzbz, 4, 2);
+
+
+		// Genererate Personenkennzeichen
+		$personenkennzeichen = $this->_ci->StudentModel->generateMatrikelnummer2(
+			$student_data->studiengang_kz,
+			$studiensemester_kurzbz,
+			$student_data->typ
+		);
+		if (isError($personenkennzeichen))
+			return $personenkennzeichen;
+		$personenkennzeichen = getData($personenkennzeichen);
+		
+		
+		// Generate UID
+		$uid = $this->_ci->StudentModel->generateUID(
+			$student_data->kurzbz,
+			$jahr,
+			$student_data->typ,
+			$personenkennzeichen,
+			$student_data->vorname,
+			$student_data->nachname
+		);
+		if (isError($uid))
+			return $uid;
+		$uid = getData($uid);
+
+
+		// Generate Matrikelnummer
+		$matrikelnummer = $this->_ci->BenutzerModel->generateMatrikelnummer(
+			$student_data->oe_kurzbz
+		);
+		if (isError($matrikelnummer))
+			return $matrikelnummer;
+		$matrikelnummer = getData($matrikelnummer);
+
+
+		// Generate Alias
+		$alias = '';
+		if (!defined('GENERATE_ALIAS_STUDENT')
+			|| GENERATE_ALIAS_STUDENT === true
+		) {
+			$result = $this->_ci->BenutzerModel->generateAliasFromName($student_data->vorname, $student_data->nachname);
+			if (isError($result))
+				return $result;
+			$alias = getData($result);
+		}
+
+		// Generate Activation Key
+		$activationkey = $this->_ci->BenutzerModel->generateActivationkey();
+
+
+		// Overwrite stuff
+		if (defined('SET_UID_AS_MATRIKELNUMMER')
+			&& SET_UID_AS_MATRIKELNUMMER)
+			$matrikelnummer = $uid;
+		if (defined('SET_UID_AS_PERSONENKENNZEICHEN')
+			&& SET_UID_AS_PERSONENKENNZEICHEN)
+			$personenkennzeichen = $uid;
+
+
+		// Update Person
+		$this->_ci->load->model('person/Person_model', 'PersonModel');
+		$result = $this->_ci->PersonModel->update([
+			'person_id' => $student_data->person_id,
+			'matr_nr' => null
+		], [
+			'matr_nr' => $matrikelnummer
+		]);
+
+		if (isError($result))
+			return $result;
+
+
+		// Add Benutzer
+		$result = $this->_ci->BenutzerModel->insert([
+			'uid' => $uid,
+			'person_id' => $student_data->person_id,
+			'aktiv' => true,
+			'aktivierungscode' => $activationkey,
+			'alias' => $alias,
+			'insertvon' => $authUID,
+			'insertamum' => $now,
+		]);
+
+		if (isError($result))
+			return $result;
+		
+
+		// Add Student
+		$result = $this->_ci->StudentModel->insert([
+			'student_uid' => $uid,
+			'matrikelnr' => $personenkennzeichen,
+			'prestudent_id' => $prestudent_id,
+			'studiengang_kz' => $student_data->studiengang_kz,
+			'semester' => $ausbildungssemester,
+			'verband' => ' ',
+			'gruppe' => ' ',
+			'insertvon' => $authUID,
+			'insertamum' => $now
+		]);
+
+		if (isError($result))
+			return $result;
+		
+
+		// Add Lehrverband if it does not exist
+		$result = $this->_ci->LehrverbandModel->load([' ', ' ', $ausbildungssemester, $student_data->studiengang_kz]);
+		
+		if (isError($result))
+			return $result;
+		
+		if (!hasData($result)) {
+			$result = $this->_ci->LehrverbandModel->insert([
+				'studiengang_kz' => $student_data->studiengang_kz,
+				'semester' => $ausbildungssemester,
+				'verband' => ' ',
+				'gruppe' => ' ',
+				'aktiv' => true
+			]);
+
+			if (isError($result))
+				return $result;
+		}
+
+
+		// Add Rolle
+		$result = $this->_ci->PrestudentstatusModel->insert([
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => Prestudentstatus_model::STATUS_STUDENT,
+			'studiensemester_kurzbz' => $studiensemester_kurzbz,
+			'ausbildungssemester' => $ausbildungssemester,
+			'orgform_kurzbz'=> $orgform_kurzbz,
+			'studienplan_id'=> $studienplan_id,
+			'datum' => $today,
+			'insertamum' => $now,
+			'insertvon' => $authUID,
+			'bestaetigtam' => $today,
+			'bestaetigtvon' => $authUID,
+			'statusgrund_id' => $statusgrund_id
+		]);
+
+		if (isError($result))
+			return $result;
+
+
+		// Add Studentlehrverband
+		$result = $this->_ci->StudentlehrverbandModel->insert([
+			'student_uid' => $uid,
+			'studiensemester_kurzbz' => $studiensemester_kurzbz,
+			'studiengang_kz' => $student_data->studiengang_kz,
+			'semester' => $ausbildungssemester,
+			'verband' => ' ',
+			'gruppe' => ' ',
+			'insertamum' => $now,
+			'insertvon' => $authUID
+		]);
+
+		if (isError($result))
+			return $result;
+
+		return success();
+	}
+
+	public function setDiplomand($prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id)
+	{
+		return $this->setBasic(
+			getAuthUID(),
+			date('c'),
+			Prestudentstatus_model::STATUS_DIPLOMAND,
+			$prestudent_id,
+			$studiensemester_kurzbz,
+			$ausbildungssemester,
+			$statusgrund_id
+		);
+	}
+
+	public function setAbsolvent($prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id)
+	{
+		$authUID = getAuthUID();
+		$now = date('c');
+
+
+		$result = $this->setBasic(
+			$authUID,
+			$now,
+			Prestudentstatus_model::STATUS_ABSOLVENT,
+			$prestudent_id,
+			$studiensemester_kurzbz,
+			$ausbildungssemester,
+			$statusgrund_id
+		);
+
+		if (isError($result))
+			return $result;
+
+		
+		// Load Student
+		$result = $this->_ci->StudentModel->loadWhere(['prestudent_id' => $prestudent_id]);
+
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return error($this->_ci->p->t('studierendenantrag', 'error_no_student_for_prestudent', ['prestudent_id' => $prestudent_id]));
+
+		$student = current(getData($result));
+
+
+		// Benutzer inaktiv setzen
+		$this->_ci->BenutzerModel->update([
+			'uid' =>  $student->student_uid
+		], [
+			'aktiv' => false,
+			'updateaktivvon' => $authUID,
+			'updateaktivam' => $now,
+			'updatevon' => $authUID,
+			'updateamum' => $now
+		]);
+
+		if (isError($result))
+			return $result;
+
+		return success();
+	}
+
+	public function setBewerber($prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id)
+	{
+		$result = $this->setBasic(
+			getAuthUID(),
+			date('c'),
+			Prestudentstatus_model::STATUS_BEWERBER,
+			$prestudent_id,
+			$studiensemester_kurzbz,
+			$ausbildungssemester,
+			$statusgrund_id
+		);
+
+		if (isError($result))
+			return $result;
+
+		if (SEND_BEWERBER_INFOMAIL) {
+			// TODO(chris): IMPLEMENT!
+		}
+
+		return success();
+	}
+
+	public function setAufgenommener($prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id)
+	{
+		return $this->setBasic(
+			getAuthUID(),
+			date('c'),
+			Prestudentstatus_model::STATUS_AUFGENOMMENER,
+			$prestudent_id,
+			$studiensemester_kurzbz,
+			$ausbildungssemester,
+			$statusgrund_id
+		);
+	}
+
+	public function setAbgewiesener($prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id)
+	{
+		return $this->setBasic(
+			getAuthUID(),
+			date('c'),
+			Prestudentstatus_model::STATUS_ABGEWIESENER,
+			$prestudent_id,
+			$studiensemester_kurzbz,
+			$ausbildungssemester,
+			$statusgrund_id
+		);
+	}
+
+	public function setWartender($prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id)
+	{
+		return $this->setBasic(
+			getAuthUID(),
+			date('c'),
+			Prestudentstatus_model::STATUS_WARTENDER,
+			$prestudent_id,
+			$studiensemester_kurzbz,
+			$ausbildungssemester,
+			$statusgrund_id
+		);
+	}
+
+	protected function setBasic($authUID, $now, $status_kurzbz, $prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id = null)
+	{
+		$result = $this->_ci->PrestudentstatusModel->getLastStatus($prestudent_id);
+
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return error($this->_ci->p->t('studierendenantrag', 'error_no_prestudentstatus', [
+				'prestudent_id' => $prestudent_id
+			]));
+
+		$prestudent_status = current(getData($result));
+
+
+		// Update Aktionen
+
+		// Status updaten
+		$result = $this->_ci->PrestudentstatusModel->insert([
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => $status_kurzbz,
+			'studiensemester_kurzbz' => $studiensemester_kurzbz,
+			'ausbildungssemester' => $ausbildungssemester,
+			'datum' => $now,
+			'insertvon' => $authUID,
+			'insertamum' => $now,
+			'orgform_kurzbz'=> $prestudent_status->orgform_kurzbz,
+			'studienplan_id'=> $prestudent_status->studienplan_id,
+			'bestaetigtvon' => $authUID,
+			'bestaetigtam' => $now,
+			'statusgrund_id' => $statusgrund_id
+		]);
+
+		if (isError($result))
+			return $result;
+
+		return success();
+	}
 }
@@ -0,0 +1,922 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+class PrestudentstatusCheckLib
+{
+	const INTERESSENT_STATUS = 'Interessent';
+	const BEWERBER_STATUS = 'Bewerber';
+	const AUFGENOMMENER_STATUS = 'Aufgenommener';
+	const UNTERBRECHER_STATUS = 'Unterbrecher';
+	const STUDENT_STATUS = 'Student';
+	const DIPLOMAND_STATUS = 'Diplomand';
+	const ABSOLVENT_STATUS = 'Absolvent';
+	const ABBRECHER_STATUS = 'Abbrecher';
+
+	private $_ci;
+	private $_statusAbfolgeVorStudent = [self::INTERESSENT_STATUS, self::BEWERBER_STATUS, self::AUFGENOMMENER_STATUS];
+	private $_endStatusArr = [self::ABSOLVENT_STATUS, self::ABBRECHER_STATUS];
+
+	private $_cache_history = [];
+
+	/**
+	 * Object initialization
+	 */
+	public function __construct()
+	{
+		$this->_ci =& get_instance();
+
+		$this->_ci->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+		$this->_ci->load->model('person/Person_model', 'PersonModel');
+		$this->_ci->load->model('crm/Prestudentstatus_model', 'PrestudentstatusModel');
+		$this->_ci->load->model('crm/Prestudent_model', 'PrestudentModel');
+		$this->_ci->load->model('crm/Student_model', 'StudentModel');
+		$this->_ci->load->model('organisation/Studienplan_model', 'StudienplanModel');
+		$this->_ci->load->model('codex/Bismeldestichtag_model', 'BismeldestichtagModel');
+	}
+
+	/**
+	 * Checks if a status add is valid.
+	 * @return object error if invalid
+	 */
+	public function checkStatusAdd(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_status_studiensemester_kurzbz,
+		$new_status_datum,
+		$new_status_ausbildungssemester,
+		$new_studienplan_id
+	) {
+		$studentName = '';
+
+		$nameRes = $this->_ci->PersonModel->loadPrestudent($prestudent_id);
+
+		if (hasData($nameRes))
+		{
+			$nameData = getData($nameRes)[0];
+			$studentName = $nameData->vorname.' '.$nameData->nachname;
+		}
+
+		// Datum des neuen Status darf nicht in Vergangenheit liegen, sonst Probleme wenn neues Datum < Bismeldedatum
+		if (new DateTime($new_status_datum) < new DateTime('today'))
+			return error($studentName . $this->_ci->p->t('lehre', 'error_entryInPast'));
+
+		return $this->_checkIfValidStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_status_studiensemester_kurzbz,
+			$new_status_datum,
+			$new_status_ausbildungssemester,
+			$new_studienplan_id
+		);
+	}
+
+	/**
+	 * Checks if a status update is valid.
+	 * @return error if invalid
+	 */
+	public function checkStatusUpdate(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_status_studiensemester_kurzbz,
+		$new_status_datum,
+		$new_status_ausbildungssemester,
+		$new_studienplan_id,
+		$old_status_studiensemester,
+		$old_status_ausbildungssemester
+	) {
+
+		return $this->_checkIfValidStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_status_studiensemester_kurzbz,
+			$new_status_datum,
+			$new_status_ausbildungssemester,
+			$new_studienplan_id,
+			$old_status_studiensemester,
+			$old_status_ausbildungssemester
+		);
+	}
+
+	/**
+	 * Checks if a student already exists.
+	 *
+	 * @param integer				$prestudent_id
+	 *
+	 * @return stdClass
+	 */
+	public function checkIfExistingStudent($prestudent_id)
+	{
+		$result = $this->_ci->StudentModel->loadWhere([
+			'prestudent_id' => $prestudent_id
+		]);
+
+		if (isError($result))
+			return $result;
+
+		return success(hasData($result));
+	}
+
+	/**
+	 * Check if Reihungstest was admitted
+	 *
+	 * @param stdClass $prestudent
+	 *
+	 * @return stdClass
+	 */
+	public function checkIfAngetreten($prestudent)
+	{
+		return success($prestudent->reihungstestangetreten);
+	}
+
+	/**
+	 * Check if ZGV-Code is registered
+	 *
+	 * @param stdClass $prestudent
+	 *
+	 * @return stdClass
+	 */
+	public function checkIfZGVEingetragen($prestudent_person)
+	{
+		return success((boolean)$prestudent_person->zgv_code);
+	}
+
+	/**
+	 * Check if Master ZGV-Code is registered
+	 *
+	 * @param stdClass $prestudent
+	 *
+	 * @return booleans $zgv_code, error if not registered
+	 */
+	public function checkIfZGVEingetragenMaster($prestudent)
+	{
+		$this->_ci->load->model('organisation/Studiengang_model', 'StudiengangModel');
+		$result = $this->_ci->StudiengangModel->load($prestudent->studiengang_kz);
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return error($this->_ci->p->t('studierendenantrag', 'error_no_stg', ['studiengang_kz' => $prestudent->studiengang_kz]));
+
+		if (current($result->retval)->typ != 'm')
+			return success(true); // NOTE(chris): we only test master stgs, all other stgs should default to true
+
+		return success((boolean)$prestudent->zgvmas_code);
+	}
+
+	/**
+	 * Checks if a bewerber status already exists.
+	 *
+	 * @param integer $prestudent_id
+	 *
+	 * @return stdClass
+	 */
+	public function checkIfExistingBewerberstatus($prestudent_id)
+	{
+		$result = $this->_ci->PrestudentstatusModel->loadWhere([
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => Prestudentstatus_model::STATUS_BEWERBER
+		]);
+		if (isError($result))
+			return $result;
+
+		return success(hasData($result));
+	}
+
+
+	/**
+	 * Checks if status aufgenommen already exists.
+	 *
+	 * @param integer $prestudent_id
+	 *
+	 * @return stdClass
+	 */
+	public function checkIfExistingAufgenommenerstatus($prestudent_id)
+	{
+		$result = $this->_ci->PrestudentstatusModel->loadWhere([
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => Prestudentstatus_model::STATUS_AUFGENOMMENER
+		]);
+		if (isError($result))
+			return $result;
+
+		return success(hasData($result));
+	}
+
+	/**
+	 * Checks if the last Bewerber status and the last Aufgenommener status
+	 * have the same studiensemester and ausbildungssemester.
+	 *
+	 * Attention:
+	 * If one of those two status is missing the function returns true!
+	 *
+	 * @param integer				$prestudent_id
+	 *
+	 * @return stdClass
+	 */
+	public function checkIfLastBewerberAndAufgenommenerShareSemesters($prestudent_id)
+	{
+		$this->_ci->PrestudentstatusModel->addOrder('datum', 'DESC');
+		$this->_ci->PrestudentstatusModel->addOrder('insertamum', 'DESC');
+		$this->_ci->PrestudentstatusModel->addLimit(1);
+		$result = $this->_ci->PrestudentstatusModel->loadWhere([
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => Prestudentstatus_model::STATUS_BEWERBER
+		]);
+
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return success(true);
+
+		$bewerber = current(getData($result));
+
+		$this->_ci->PrestudentstatusModel->addOrder('datum', 'DESC');
+		$this->_ci->PrestudentstatusModel->addOrder('insertamum', 'DESC');
+		$this->_ci->PrestudentstatusModel->addLimit(1);
+		$result = $this->_ci->PrestudentstatusModel->loadWhere([
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => Prestudentstatus_model::STATUS_AUFGENOMMENER
+		]);
+
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return success(true);
+
+		$aufgenommener = current(getData($result));
+
+		return success(
+			$bewerber->studiensemester_kurzbz == $aufgenommener->studiensemester_kurzbz
+			&& $bewerber->ausbildungssemester == $aufgenommener->ausbildungssemester
+		);
+	}
+
+	/**
+	 * Check if Bismeldestichtag erreicht
+	 *
+	 * @param DateTime				$statusDatum
+	 * @param string				$studiensemester_kurzbz
+	 *
+	 * @return stdClass
+	 */
+	public function checkIfMeldestichtagErreicht($statusDatum, $studiensemester_kurzbz = null)
+	{
+		$result = $this->_ci->BismeldestichtagModel->checkIfMeldestichtagErreicht($statusDatum, $studiensemester_kurzbz);
+		
+		if (isError($result))
+			return $result;
+		
+		return success(getData($result) == "1");
+	}
+
+	/**
+	 * Runs all checks on Status History and saves it in cache.
+	 *
+	 * @param integer				$prestudent_id
+	 * @param string				$status_kurzbz
+	 * @param DateTime				$new_date
+	 * @param string				$new_studiensemester_kurzbz
+	 * @param integer				$new_ausbildungssemester
+	 * @param string				$old_studiensemester_kurzbz
+	 * @param integer				$old_ausbildungssemester
+	 *
+	 * @return stdClass
+	 */
+	protected function prepareStatusHistory(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_date,
+		$new_studiensemester_kurzbz,
+		$new_ausbildungssemester,
+		$old_studiensemester_kurzbz,
+		$old_ausbildungssemester
+	) {
+		// Generate key for caching
+		$primary = implode('|', [
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date->format('Y-m-d'),
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		]);
+
+		if (isset($this->_cache_history[$primary]))
+			return $this->_cache_history[$primary];
+
+		$this->_ci->load->model('crm/Prestudentstatus_model', 'PrestudentstatusModel');
+
+		// Get the history
+		$result = $this->_ci->PrestudentstatusModel->getHistoryWithNewOrEditedState(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date,
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		);
+
+		if (isError($result))
+			return $result;
+
+		if (!hasData($result))
+			return error('This is impossible');
+
+		$history = getData($result);
+		$historyCount = count($history);
+
+		// Run checks
+		$checks = [
+			'timesequence' => true,
+			'laststatus' => true,
+			'unterbrechersemester' => true,
+			'abbrechersemester' => true,
+			'diplomant' => true,
+			'student' => true
+		];
+
+		for ($n = 0, $c = 1; $c < $historyCount; $n++, $c++) {
+			if (!$checks['timesequence']
+				&& !$checks['laststatus']
+				&& !$checks['unterbrechersemester']
+				&& !$checks['abbrechersemester']
+				&& !$checks['diplomant']
+				&& !$checks['student']
+			)
+				break; // early out
+
+			$next = $history[$n];
+			$current = $history[$c];
+
+			// Zeitabfolge ungültig?
+			if ($checks['timesequence']
+				&& $next->start < $current->start
+			)
+				$checks['timesequence'] = false;
+
+			// Abbrecher- oder Absolventenstatus muss Endstatus sein
+			if ($checks['laststatus']
+				&& in_array($current->status_kurzbz, [self::ABSOLVENT_STATUS, self::ABBRECHER_STATUS])
+			)
+				$checks['laststatus'] = false;
+
+			// wenn Unterbrecher auf Unterbrecher folgt, muss Ausbildungssemester gleich sein
+			if ($checks['unterbrechersemester']
+				&& $current->status_kurzbz == self::UNTERBRECHER_STATUS
+				&& $next->status_kurzbz == self::UNTERBRECHER_STATUS
+				&& $current->ausbildungssemester != $next->ausbildungssemester
+			)
+				$checks['unterbrechersemester'] = false;
+
+			// wenn Abbrecher auf Unterbrecher folgt, muss Ausbildungssemester gleich sein
+			if ($checks['abbrechersemester']
+				&& $current->status_kurzbz == self::UNTERBRECHER_STATUS
+				&& $next->status_kurzbz == self::ABBRECHER_STATUS
+				&& $current->ausbildungssemester != $next->ausbildungssemester
+			)
+				$checks['abbrechersemester'] = false;
+
+			if (($checks['diplomant']
+				|| $checks['student'])
+				&& $next->status_kurzbz == self::STUDENT_STATUS
+			) {
+				$restl_stati = array_unique(array_column(array_slice($history, $c), 'status_kurzbz'));
+
+				// keine Studenten nach Diplomand Status
+				if ($checks['diplomant']
+					&& in_array(self::DIPLOMAND_STATUS, $restl_stati)
+				)
+					$checks['diplomant'] = false;
+
+				// vor Studentenstatus müssen bestimmte Status vorhanden sein
+				if ($checks['student']
+					&& array_values(array_intersect($restl_stati, $this->_statusAbfolgeVorStudent)) != array_values($this->_statusAbfolgeVorStudent)
+				)
+					$checks['student'] = false;
+			}
+		}
+
+		$this->_cache_history[$primary] = success($checks);
+
+		return success($checks);
+	}
+
+	/**
+	 * Checks if the time sequence of the status history is valid.
+	 *
+	 * @param integer				$prestudent_id
+	 * @param string				$status_kurzbz
+	 * @param DateTime				$new_date
+	 * @param string				$new_studiensemester_kurzbz
+	 * @param integer				$new_ausbildungssemester
+	 * @param string				$old_studiensemester_kurzbz
+	 * @param integer				$old_ausbildungssemester
+	 *
+	 * @return stdClass
+	 */
+	public function checkStatusHistoryTimesequence(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_date,
+		$new_studiensemester_kurzbz,
+		$new_ausbildungssemester,
+		$old_studiensemester_kurzbz,
+		$old_ausbildungssemester
+	) {
+		$result = $this->prepareStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date,
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		);
+
+		if (isError($result))
+			return $result;
+
+		return success(getData($result)['timesequence']);
+	}
+
+	/**
+	 * Checks if the last status of the status history is not Abbrecher or
+	 * Absolvent.
+	 *
+	 * @param integer				$prestudent_id
+	 * @param string				$status_kurzbz
+	 * @param DateTime				$new_date
+	 * @param string				$new_studiensemester_kurzbz
+	 * @param integer				$new_ausbildungssemester
+	 * @param string				$old_studiensemester_kurzbz
+	 * @param integer				$old_ausbildungssemester
+	 *
+	 * @return stdClass
+	 */
+	public function checkStatusHistoryLaststatus(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_date,
+		$new_studiensemester_kurzbz,
+		$new_ausbildungssemester,
+		$old_studiensemester_kurzbz,
+		$old_ausbildungssemester
+	) {
+		$result = $this->prepareStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date,
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		);
+
+		if (isError($result))
+			return $result;
+
+		return success(getData($result)['laststatus']);
+	}
+
+	/**
+	 * Checks if two consecutively Unterbrecher have the same
+	 * ausbildungssemester in the status history.
+	 *
+	 * @param integer				$prestudent_id
+	 * @param string				$status_kurzbz
+	 * @param DateTime				$new_date
+	 * @param string				$new_studiensemester_kurzbz
+	 * @param integer				$new_ausbildungssemester
+	 * @param string				$old_studiensemester_kurzbz
+	 * @param integer				$old_ausbildungssemester
+	 *
+	 * @return stdClass
+	 */
+	public function checkStatusHistoryUnterbrechersemester(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_date,
+		$new_studiensemester_kurzbz,
+		$new_ausbildungssemester,
+		$old_studiensemester_kurzbz,
+		$old_ausbildungssemester
+	) {
+		$result = $this->prepareStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date,
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		);
+
+		if (isError($result))
+			return $result;
+
+		return success(getData($result)['unterbrechersemester']);
+	}
+
+	/**
+	 * Checks if an Unterbrecher followed by an Abbrecher have the same
+	 * ausbildungssemester in the status history.
+	 *
+	 * @param integer				$prestudent_id
+	 * @param string				$status_kurzbz
+	 * @param DateTime				$new_date
+	 * @param string				$new_studiensemester_kurzbz
+	 * @param integer				$new_ausbildungssemester
+	 * @param string				$old_studiensemester_kurzbz
+	 * @param integer				$old_ausbildungssemester
+	 *
+	 * @return stdClass
+	 */
+	public function checkStatusHistoryAbbrechersemester(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_date,
+		$new_studiensemester_kurzbz,
+		$new_ausbildungssemester,
+		$old_studiensemester_kurzbz,
+		$old_ausbildungssemester
+	) {
+		$result = $this->prepareStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date,
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		);
+
+		if (isError($result))
+			return $result;
+
+		return success(getData($result)['abbrechersemester']);
+	}
+
+	/**
+	 * Checks if no Diplomant is followed by a Student in the status history.
+	 *
+	 * @param integer				$prestudent_id
+	 * @param string				$status_kurzbz
+	 * @param DateTime				$new_date
+	 * @param string				$new_studiensemester_kurzbz
+	 * @param integer				$new_ausbildungssemester
+	 * @param string				$old_studiensemester_kurzbz
+	 * @param integer				$old_ausbildungssemester
+	 *
+	 * @return stdClass
+	 */
+	public function checkStatusHistoryDiplomant(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_date,
+		$new_studiensemester_kurzbz,
+		$new_ausbildungssemester,
+		$old_studiensemester_kurzbz,
+		$old_ausbildungssemester
+	) {
+		$result = $this->prepareStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date,
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		);
+
+		if (isError($result))
+			return $result;
+
+		return success(getData($result)['diplomant']);
+	}
+
+	/**
+	 * Checks if a Student precedes given stati in the status history.
+	 *
+	 * @param integer				$prestudent_id
+	 * @param string				$status_kurzbz
+	 * @param DateTime				$new_date
+	 * @param string				$new_studiensemester_kurzbz
+	 * @param integer				$new_ausbildungssemester
+	 * @param string				$old_studiensemester_kurzbz
+	 * @param integer				$old_ausbildungssemester
+	 *
+	 * @return stdClass
+	 */
+	public function checkStatusHistoryStudent(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_date,
+		$new_studiensemester_kurzbz,
+		$new_ausbildungssemester,
+		$old_studiensemester_kurzbz,
+		$old_ausbildungssemester
+	) {
+		// TODO(chris): TEST
+		$result = $this->prepareStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date,
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		);
+
+		if (isError($result))
+			return $result;
+
+		return success(getData($result)['student']);
+	}
+
+	/**
+	 * Checks if Personenkennzeichen is set correctly.
+	 *
+	 * @param integer				$prestudent_id
+	 *
+	 * @return stdClass
+	 */
+	public function checkPersonenkennzeichen($prestudent_id)
+	{
+		// TODO(chris): TEST
+		$this->_ci->PrestudentstatusModel->addSelect('tbl_prestudentstatus.prestudent_id');
+		$this->_ci->PrestudentstatusModel->addSelect('tbl_student.matrikelnr');
+
+		$this->_ci->PrestudentstatusModel->addJoin('public.tbl_student', 'prestudent_id');
+
+		$this->_ci->PrestudentstatusModel->addOrder('tbl_prestudentstatus.datum', 'DESC');
+		$this->_ci->PrestudentstatusModel->addOrder('tbl_prestudentstatus.insertamum', 'DESC');
+		$this->_ci->PrestudentstatusModel->addOrder('tbl_prestudentstatus.ext_id', 'DESC');
+		
+		$this->_ci->PrestudentstatusModel->addLimit(1);
+		
+		$result = $this->_ci->PrestudentstatusModel->loadWhere([
+			'tbl_prestudentstatus.prestudent_id' => $prestudent_id,
+			'tbl_prestudentstatus.status_kurzbz' => self::STATUS_STUDENT
+		]);
+
+		if (isError($result))
+			return $result;
+
+		if (!hasData($result))
+			return success(true); // Not a student yet so no wrong personenkennzeichen
+
+		$data = current(getData($result));
+
+		$jahr = $this->_ci->StudiensemesterModel->getStudienjahrNumberFromStudiensemester($data->studiensemester_kurzbz);
+
+
+		return success($jahr == mb_substr($data->matrikelnr, 0, 2));
+	}
+
+	/**
+	 * Checks if Orgform of Student status and Bewerber status match.
+	 *
+	 * @param integer				$prestudent_id
+	 *
+	 * @return stdClass
+	 */
+	public function checkStudentOrgform($prestudent_id)
+	{
+		// TODO(chris): TEST
+		$result = $this->_ci->PrestudentstatusModel->getBewerberWhereOrgformNotStudent($prestudent_id);
+
+		if (isError($result))
+			return $result;
+
+		return success(!hasData($result));
+	}
+
+	/**
+	 * Check if History of StatusData is valid
+	 * @param integer $prestudent_id
+	 * @return error if not valid, array StatusArr if valid
+	 */
+	private function _checkIfValidStatusHistory(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_status_studiensemester_kurzbz,
+		$new_status_datum,
+		$new_status_ausbildungssemester,
+		$new_studienplan_id,
+		$old_status_studiensemester = null,
+		$old_status_ausbildungssemester = null
+	) {
+		//get start studiensemester
+		$semResult = $this->_ci->StudiensemesterModel->load([
+			'studiensemester_kurzbz' => $new_status_studiensemester_kurzbz
+		]);
+
+		if (isError($semResult))
+		{
+			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
+			return $this->outputJson(getError($semResult));
+		}
+
+		if (!hasData($semResult)) {
+			return error($this->_ci->p->t('lehre', 'error_noStudiensemester') . $new_status_studiensemester_kurzbz);
+		}
+
+		$studiensemester = getData($semResult)[0];
+		$new_status_semesterstart = $studiensemester->start;
+
+		// get studienplan orgform
+		$new_studienplan_orgform_kurzbz = '';
+		$this->_ci->StudienplanModel->addSelect('orgform_kurzbz');
+		$stplResult = $this->_ci->StudienplanModel->load([
+			'studienplan_id' => $new_studienplan_id
+		]);
+
+		if (isError($stplResult))
+		{
+			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
+			return $this->outputJson(getError($stplResult));
+		}
+
+		if (hasData($stplResult)) $new_studienplan_orgform_kurzbz = getData($stplResult)[0]->orgform_kurzbz;
+
+
+		//get all prestudentstati
+		$resultPs = $this->_ci->PrestudentstatusModel->getAllPrestudentstatiWithStudiensemester($prestudent_id);
+
+		if (isError($resultPs)) return $resultPs;
+
+		$resultArr = hasData($resultPs) ? getData($resultPs) : [];
+		$statusArr = [];
+
+		$newStatusInserted = false;
+		$new_status_datum_form = new DateTime($new_status_datum);
+		$new_status_semesterstart_form = new DateTime($new_status_semesterstart);
+
+		if (!isEmptyArray($resultArr))
+		{
+			// neuen Status zum Hinzufügen
+			$first_status = $resultArr[0];
+			$neuer_status = new stdClass();
+			$neuer_status->status_kurzbz = $status_kurzbz;
+			$neuer_status->studiensemester_kurzbz = $new_status_studiensemester_kurzbz;
+			$neuer_status->datum = $new_status_datum;
+			$neuer_status->ausbildungssemester = $new_status_ausbildungssemester;
+			$neuer_status->studienplan_orgform_kurzbz = $new_studienplan_orgform_kurzbz;
+			$neuer_status->matrikelnr = $first_status->matrikelnr;
+			$neuer_status->vorname = $first_status->vorname;
+			$neuer_status->nachname = $first_status->nachname;
+
+			// Status, welcher gerade geändert wird, holen
+			$status_to_change = array_filter(
+				$resultArr,
+				function ($status) use ($status_kurzbz, $old_status_studiensemester, $old_status_ausbildungssemester) {
+					return
+						$status->status_kurzbz == $status_kurzbz
+						&& $status->studiensemester_kurzbz == $old_status_studiensemester
+						&& $status->ausbildungssemester == $old_status_ausbildungssemester;
+				}
+			);
+
+			if (!isEmptyArray($status_to_change))
+			{
+				$status_to_change_index = key($status_to_change);
+
+				// wenn sich Studiensemester und Ausbildungssemester nicht geändert haben...
+				if ($new_status_studiensemester_kurzbz == $old_status_studiensemester
+					&& $new_status_ausbildungssemester == $old_status_ausbildungssemester)
+				{
+					// ...neuen status an selber stelle einfügen wie zu ändernder Status
+					$resultArr[$status_to_change_index] = (object)array_merge((array)$resultArr[$status_to_change_index], (array)$neuer_status);
+					$newStatusInserted = true;
+				}
+				else
+				{
+					// bei Status mit neuem Semester: alten Status entfernen
+					unset($resultArr[$status_to_change_index]);
+				}
+			}
+		}
+
+		foreach ($resultArr as $row)
+		{
+			$studiensemester_start = new DateTime($row->studiensemester_start);
+			$status_datum = new DateTime($row->datum);
+
+			if ($new_status_datum_form >= $status_datum && $new_status_semesterstart_form >= $studiensemester_start)
+			{
+				if (!$newStatusInserted)
+				{
+					// neuer Status erstmals größer als Datum eines bestehenden Status -> neuen Status EINMALIG einfügen für spätere Statusprüfung
+					$statusArr[] = $neuer_status;
+					$newStatusInserted = true;
+				}
+				$statusArr[] = $row;
+			}
+			elseif ($new_status_datum_form <= $status_datum && $new_status_semesterstart_form <= $studiensemester_start)
+			{
+				$statusArr[] = $row;
+			}
+			else
+			{
+				// Zeitabfolge ungültig, Fehler
+				return error($this->_ci->p->t('lehre', 'error_statuseintrag_zeitabfolge'));
+			}
+		}
+
+		// erster Studentstatus
+		$ersterStudent = null;
+
+		// Über alle gespeicherten Status gehen und Statusabfolge prüfen
+		for ($i = 0; $i < count($statusArr); $i++)
+		{
+			$curr_status = $statusArr[$i];
+			$curr_status_kurzbz = $curr_status->status_kurzbz;
+			$curr_status_ausbildungssemester = $curr_status->ausbildungssemester;
+			$next_idx = $i - 1; //absteigend sortiert, nächster Status ist vorheriger Eintrag
+			$next_status = isset($statusArr[$next_idx]) ? $statusArr[$next_idx] : null;
+
+			$studentName = $curr_status->vorname . ' ' . $curr_status->nachname;
+
+			if ($curr_status_kurzbz == self::STUDENT_STATUS) $ersterStudent = $curr_status;
+
+			// Abbrecher- oder Absolventenstatus muss Endstatus sein
+			if (isset($next_status) && in_array($curr_status_kurzbz, $this->_endStatusArr))
+			{
+				return error($studentName . ' ' . $this->_ci->p->t('lehre', 'error_endstatus'));
+			}
+
+			// wenn Unterbrecher auf Unterbrecher folgt, muss Ausbildungssemester gleich sein
+			if
+				($curr_status_kurzbz == self::UNTERBRECHER_STATUS && isset($next_status) && $next_status->status_kurzbz == self::UNTERBRECHER_STATUS
+				&& $curr_status_ausbildungssemester != $next_status->ausbildungssemester)
+			{
+				return error($studentName . ' ' . $this->_ci->p->t('lehre', 'error_consecutiveUnterbrecher'));
+			}
+
+			// wenn Abbrecher auf Unterbrecher folgt, muss Ausbildungssemester gleich sein
+			if (isset($next_status)
+				&& $curr_status_kurzbz == self::UNTERBRECHER_STATUS
+				&& $next_status->status_kurzbz == self::ABBRECHER_STATUS && $curr_status_ausbildungssemester != $next_status->ausbildungssemester)
+			{
+				return error($studentName . ' ' . $this->_ci->p->t('lehre', 'error_consecutiveUnterbrecherAbbrecher'));
+			}
+
+			if (isset($next_status) && $next_status->status_kurzbz == self::STUDENT_STATUS)
+			{
+				$restliche_status_obj = array_slice($statusArr, $i);
+				$restliche_status = array_unique(array_column($restliche_status_obj, 'status_kurzbz'));
+				$status_intersected = array_intersect($restliche_status, $this->_statusAbfolgeVorStudent);
+
+				// Vor Studentstatus darf kein Diplomand Status vorhanden sein
+				if (in_array(self::DIPLOMAND_STATUS, $restliche_status))
+				{
+					return error($studentName . ' ' . $this->_ci->p->t('lehre', 'error_consecutiveDiplomandStudent'));
+				}
+
+				// Vor Studentstatus müssen bestimmte Status vorhanden sein
+				if (array_values($status_intersected) != array_values(array_reverse($this->_statusAbfolgeVorStudent)))
+				{
+					return error(
+						$studentName . ' '
+						. $this->_ci->p->t('lehre', 'error_wrongStatusOrderBeforeStudent', array(implode(', ', $this->_statusAbfolgeVorStudent)))
+					);
+				}
+			}
+		}
+
+		if (isset($ersterStudent))
+		{
+			$studentName = $ersterStudent->vorname . ' ' . $ersterStudent->nachname;
+
+			// wenn erster Studentstatus, checken ob Personenkennzeichen passt
+			$studienjahrNumber = $this->_ci->StudiensemesterModel->getStudienjahrNumberFromStudiensemester($ersterStudent->studiensemester_kurzbz);
+
+			if ($studienjahrNumber != mb_substr($ersterStudent->matrikelnr, 0, 2))
+			{
+				return error($studentName . ' ' . $this->_ci->p->t('lehre', 'error_personenkennzeichenPasstNichtZuStudiensemester'));
+			}
+
+			// wenn erster Studentstatus, checken ob Orgform des Bewerbers mit Studenten übereinstimmt
+			if (!isEmptyArray(
+				array_filter(
+					$restliche_status_obj,
+					function ($s) use ($ersterStudent) {
+						return
+							$s->status_kurzbz == self::BEWERBER_STATUS
+							&& (
+								$s->studienplan_orgform_kurzbz != $ersterStudent->studienplan_orgform_kurzbz
+							);
+					}
+				)
+			)
+			)
+			{
+				return error($studentName . ' ' . $this->_ci->p->t('lehre', 'error_bewerberOrgformUngleichStudentOrgform'));
+			}
+		}
+
+		return $resultPs;
+	}
+}
@@ -358,6 +358,35 @@ EOSC;
 	 */
 	private function _student($searchstr, $type)
 	{
+		$dbModel = new DB_Model();
+
+		$students = $dbModel->execReadOnlyQuery('
+		SELECT
+			\''.$type.'\' AS type,
+			s.student_uid AS uid,
+			s.matrikelnr,
+			p.person_id AS person_id,
+			p.vorname || \' \' || p.nachname AS name,
+			k.kontakt as email ,
+			p.foto
+			FROM public.tbl_student s
+			JOIN public.tbl_benutzer b ON(b.uid = s.student_uid)
+			JOIN public.tbl_person p USING(person_id)
+			LEFT JOIN (
+				SELECT kontakt, person_id
+				FROM public.tbl_kontakt
+					WHERE kontakttyp = \'email\'
+			) as k USING(person_id)
+				WHERE b.uid ILIKE \'%'.$dbModel->escapeLike($searchstr).'%\'
+			OR p.vorname ILIKE \'%'.$dbModel->escapeLike($searchstr).'%\'
+			OR p.nachname ILIKE \'%'.$dbModel->escapeLike($searchstr).'%\'
+					GROUP BY type, s.student_uid, s.matrikelnr, p.person_id, name, email, p.foto
+	');
+
+		// If something has been found then return it
+		if (hasData($students)) return getData($students);
+
+		// Otherwise return an empty array
 		return array();
 	}

@@ -366,6 +395,41 @@ EOSC;
 	 */
 	private function _prestudent($searchstr, $type)
 	{
+		$dbModel = new DB_Model();
+
+		$prestudent = $dbModel->execReadOnlyQuery('
+		SELECT
+			\''.$type.'\' AS type,
+			ps.prestudent_id,
+			ps.studiengang_kz,
+			p.person_id AS person_id,
+			b.uid,
+			p.vorname || \' \' || p.nachname AS name,
+			(
+				SELECT kontakt
+				FROM public.tbl_kontakt
+				WHERE kontakttyp = \'email\'
+				AND person_id = p.person_id
+				LIMIT 1
+			) as email,
+			p.foto,
+			sg.bezeichnung
+			FROM public.tbl_prestudent ps
+			LEFT JOIN public.tbl_student s USING (prestudent_id)
+			LEFT JOIN public.tbl_benutzer b ON (b.uid = s.student_uid)
+			JOIN public.tbl_person p ON (p.person_id = ps.person_id)
+			LEFT JOIN public.tbl_studiengang sg ON (sg.studiengang_kz = ps.studiengang_kz)
+			WHERE b.uid ILIKE \'%'.$dbModel->escapeLike($searchstr).'%\'
+				OR p.vorname ILIKE \'%'.$dbModel->escapeLike($searchstr).'%\'
+				OR p.nachname ILIKE \'%'.$dbModel->escapeLike($searchstr).'%\'
+				or cast(ps.prestudent_id as text) ILIKE \'%'.$dbModel->escapeLIKE($searchstr).'%\'
+			GROUP BY type, b.uid, ps.prestudent_id, ps.studiengang_kz, sg.bezeichnung, s.student_uid, s.matrikelnr, p.person_id, name, email, p.foto
+			');
+
+		// If something has been found then return it
+		if (hasData($prestudent)) return getData($prestudent);
+
+		// Otherwise return an empty array
 		return array();
 	}

@@ -65,6 +65,8 @@ class UDFLib

 	private $_udfUniqueId; // Property that contains the UDF widget unique id

+	private $_definition_cache = [];
+
 	/**
 	 * Gets CI instance
 	 */
@@ -157,7 +159,7 @@ class UDFLib
 					$found = false; // used to check if the field is found or not in the json schema

 					$this->_sortJsonSchemas($jsonSchemasArray); // Sort the list of UDF by sort property
-					
+
 					// Loops through json schemas
 					foreach ($jsonSchemasArray as $jsonSchema)
 					{
@@ -292,7 +294,7 @@ class UDFLib
 				// Checks if the requiredPermissions is available and it is a valid array or a valid string
 				if (isset($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})
 					&& (!isEmptyArray($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})
-					|| !isEmptyString($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})))
+						|| !isEmptyString($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})))
 				{
 					// Then check if the user has the permissions to read such UDF
 					if (!$this->_readAllowed($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER}))
@@ -353,7 +355,7 @@ class UDFLib
 				// Checks if the requiredPermissions is available and it is a valid array or a valid string
 				if (isset($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})
 					&& (!isEmptyArray($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})
-					|| !isEmptyString($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})))
+						|| !isEmptyString($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})))
 				{
 					// Then check if the user has the permissions to write such UDF
 					if (!$this->_writeAllowed($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER}))
@@ -613,6 +615,162 @@ class UDFLib
 		);
 	}

+	/**
+	 * Gets the UDF definitions for a model
+	 *
+	 * @param DB_Model			$targetModel
+	 *
+	 * @return stdClass
+	 */
+	public function getDefinitionForModel($targetModel)
+	{
+		$dbTable = $targetModel->getDbTable();
+		if (!isset($this->_definition_cache[$dbTable])) {
+			$this->_ci->load->model('system/UDF_model', 'UDFModel');
+			list($schema, $table) = explode('.', $dbTable);
+			$result = $this->_ci->UDFModel->loadWhere([
+				'schema' => $schema,
+				'table' => $table
+			]);
+			if (isError($result))
+				return $result;
+			if (!hasData($result))
+				$this->_definition_cache[$dbTable] = [];
+			else
+				$this->_definition_cache[$dbTable] = json_decode(current($result->retval)->jsons, true);
+		}
+		return success($this->_definition_cache[$dbTable]);
+	}
+
+	/**
+	 * Gets the UDFs for db entry with translated params and resolved listValues for dropdowns
+	 *
+	 * @param DB_Model			$targetModel
+	 * @param mixed				$id
+	 *
+	 * @return stdClass
+	 */
+	public function getFieldArray($targetModel, $id)
+	{
+		// Load Libraries
+		$this->_ci->load->library('PhrasesLib');
+		$this->_ci->load->library('PermissionLib');
+
+		$result = $this->getDefinitionForModel($targetModel);
+		if (isError($result))
+			return $result;
+		$definitions = $result->retval;
+
+		usort($definitions, function ($a, $b) {
+			return $a[self::SORT] - $b[self::SORT];
+		});
+
+		$values = $targetModel->getUDFs($id);
+
+		$fields = [];
+		foreach ($definitions as $field) {
+			// check read permissions
+			if (!$this->_ci->permissionlib->hasAtLeastOne(
+				$field[self::REQUIRED_PERMISSIONS_PARAMETER],
+				self::PERMISSION_TABLE_METHOD,
+				self::PERMISSION_TYPE_READ
+			))
+				continue;
+
+			// set value
+			if (isset($values[$field[self::NAME]])) {
+				$field['value'] = $values[$field[self::NAME]];
+			} elseif (isset($field['defaultValue'])) {
+				$field['value'] = $field['defaultValue'];
+			} elseif (isset($field[self::TYPE]) && $field[self::TYPE] == 'checkbox') {
+				$field['value'] = false;
+			} else {
+				$field['value'] = '';
+			}
+
+			// translate params
+			foreach ([self::LABEL, self::TITLE, self::PLACEHOLDER] as $key) {
+				if (isset($field[$key])) {
+					$res = $this->_ci->phraseslib->getPhrases(self::PHRASES_APP_NAME, getUserLanguage(), $field[$key], null, null, 'no');
+					if (hasData($res))
+						$field[$key] = current(getData($res))->text;
+				}
+			}
+
+			// check write permissions
+			$field['disabled'] = !$this->_ci->permissionlib->hasAtLeastOne(
+				$field[self::REQUIRED_PERMISSIONS_PARAMETER],
+				self::PERMISSION_TABLE_METHOD,
+				self::PERMISSION_TYPE_WRITE
+			);
+
+			// set listValues for dropdowns
+			if (isset($field[self::LIST_VALUES])) {
+				if (isset($field[self::LIST_VALUES]['enum'])) {
+					$field['options'] = $field[self::LIST_VALUES]['enum'];
+				} elseif (isset($field[self::LIST_VALUES]['sql'])) {
+					$res = $this->_ci->UDFModel->execReadOnlyQuery($field[self::LIST_VALUES]['sql']);
+					$field['options'] = hasData($res) ? getData($res) : [];
+				}
+			}
+
+			// add to array
+			$fields[] = $field;
+		}
+		return success($fields);
+	}
+
+	/**
+	 * Gets a validation config array for CI form_validation
+	 *
+	 * @param DB_Model			$targetModel
+	 * @param array				(optional) $filter
+	 *
+	 * @return stdClass
+	 */
+	public function getCiValidations($targetModel, $filter = null)
+	{
+		$result = $this->getDefinitionForModel($targetModel);
+		if (isError($result))
+			return $result;
+		$definitions = getData($result);
+
+		$result = [];
+		foreach ($definitions as $def) {
+			if ($filter && !isset($filter[$def['name']]))
+				continue;
+			$validations = [];
+			if (isset($def['requiredPermissions']))
+				$validations[] = 'has_write_permissions[' . implode(',', $def['requiredPermissions']) . ']';
+			if (isset($def['required']))
+				$validations[] = 'required';
+			if (isset($def['validation'])) {
+				if (isset($def['validation']['max-value']))
+					$validations[] = 'less_than_equal_to[' . $def['validation']['max-value'] . ']';
+				if (isset($def['validation']['min-value']))
+					$validations[] = 'greater_than_equal_to[' . $def['validation']['min-value'] . ']';
+				if (isset($def['validation']['max-length']))
+					$validations[] = 'max_length[' . $def['validation']['max-length'] . ']';
+				if (isset($def['validation']['min-length']))
+					$validations[] = 'min_length[' . $def['validation']['min-length'] . ']';
+				if (isset($def['validation']['regex']) && is_array($def['validation']['regex'])) {
+					foreach ($def['validation']['regex'] as $regex) {
+						if ($regex['language'] == 'php') {
+							$validations[] = 'regex_match[' . $regex['expression'] . ']';
+						}
+					}
+				}
+			}
+			if ($validations)
+				$result[] = [
+					'field' => $def['name'],
+					'label' => $def['title'],
+					'rules' => $validations
+				];
+		}
+		return success($result);
+	}
+
 	// -------------------------------------------------------------------------------------------------
 	// Private methods
 	//
@@ -841,7 +999,7 @@ class UDFLib
 		$htmlParameters[HTMLWidget::HTML_ID] = $jsonSchema->{self::NAME};
 		$htmlParameters[HTMLWidget::HTML_NAME] = $jsonSchema->{self::NAME};
 	}
-	
+
 	/**
 	 * Sort the list of UDF by sort property
 	 */
@@ -864,7 +1022,7 @@ class UDFLib
 			return ($a->{self::SORT} < $b->{self::SORT}) ? -1 : 1;
 		});
 	}
-	
+
 	/**
 	 * Loads the UDF description by the given schema and table
 	 */